Positive Ground Vs Negative Ground Solar Panels

I am also powering some clearance lights with the truck trailer plug.

Positive ground vs negative ground solar panels.

As the negative terminals of different devices are all at different voltages in a common positive system. This occurs primarily because of moisture. Originally the voltages on the wires were positive with respect to earth. There are three main reasons for grounding in an off grid power system.

Positive ground the positive terminal is defined ground. But before we address each of these it s important to understand the actual definition of ground. This is called negative ground since the negative side of the battery is grounded to earth. There are two distinct advantages to grounding the positive leg of a photovoltaic solar system.

Chassis or mechanical and electrical. I have it all setup to charge the house battery and have my loads set up through a fuse block on the load pins of the controller. The slide in camper has a chassis ground common to all the interior and clearance lights. Safety v oltage transients and t h e sheer fact that they are required for some loads.

There are two types of ground. The electronics required for switching on the positive side is a little more complicated hence more expensive that what s needed for switching on the negative. And all switching fusing control done on the positive side. If the controller is to be used on a vehicle which has battery negative on the chassis loads connected to the controller must not have an electrical connection to the vehicle body.

The panel frames may be mounted to chassis ground and the solar controller may be mounted to. I find it kind of weird that positive ground charge controllers even exist since so many are used on rvs one would think a negative ground should be standard but i digress. Common negative grounding is simply having all negatives linked to ground. Negative ground means that ground is referenced to the negative terminal of the supply voltage.

If grounding is necessary it must be completed on the positive line. Common positive systems can be a massive can of worms. They both relate to leakage to ground.